cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A247501 Triangle read by rows, T(n,k) (n>=0, 0<=k<=n) coefficients of the partial fraction decomposition of rational functions generating the columns of A247498 (the Swiss-Knife polynomials evaluated at nonnegative integers).

Table of values

n a(n)
0 1
1 1
2 1
3 0
4 3
5 2
6 -2
7 4
8 12
9 6
10 0
11 -3
12 38
13 60
14 24
15 16
16 -14
17 60
18 330
19 360
20 120
21 0
22 63
23 2
24 1200
25 3000
26 2520
27 720
28 -272
29 274
30 252
31 3066
32 17640
33 29400
34 20160
35 5040
36 0
37 -1383
38 3278
39 8820
40 81144
41 246960
42 312480
43 181440
44 40320

List of values

[1, 1, 1, 0, 3, 2, -2, 4, 12, 6, 0, -3, 38, 60, 24, 16, -14, 60, 330, 360, 120, 0, 63, 2, 1200, 3000, 2520, 720, -272, 274, 252, 3066, 17640, 29400, 20160, 5040, 0, -1383, 3278, 8820, 81144, 246960, 312480, 181440, 40320]